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''Pinus tabuliformis'' (油松 yóusōng in Mandarin), Southern Chinese pine or Chinese red pine, is a pine native to northern China from Liaoning west to Inner Mongolia and Gansu, and south to Shandong, Henan and Shaanxi, and also northern Korea. In some older texts the name is spelled "''Pinus tabulaeformis''". ==Description== ''Pinus tabuliformis'' is a medium-sized evergreen tree 20–30 m tall, with a flat-topped crown when mature (whence the scientific name, 'table-shaped'). The growth rate is fast when young, but slows with age. The grey-brown bark fissures at an early age compared to other trees. The broadly spreading shape is very pronounced, in part due to the long horizontal branching pattern. The needle-like leaves are shiny grey-green, 10–17 cm long and 1.5 mm broad, usually in pairs but occasionally in threes at the tips of strong shoots on young trees. The cones are green, ripening brown about 20 months after pollination, broad ovoid, 4–6 cm long, with broad scales, each scale with a small prickle. The seeds are 6–7 mm long with a 15–20 mm wing, and are wind-dispersed. ;Varieties There are two varieties: *''Pinus tabuliformis'' var. ''tabuliformis''. China, except for Liaoning. Broadest cone scales under 15 mm broad. *''Pinus tabuliformis'' var. ''mukdensis''. Liaoning, North Korea. Broadest cone scales over 15 mm broad. Some botanists also treat the closely related Henry's pine (''Pinus henryi'') and Sikang pine (''Pinus densata'') as varieties of Chinese red pine; in some older texts even the very distinct Yunnan pine (''Pinus yunnanensis'') is included as a variety. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pinus tabuliformis」の詳細全文を読む スポンサード リンク
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